OK, I am in the military, and I myself, don't care what goes on in someone else bedroom. There will be problems with the whole open about who you sleep with in the army. Mostly the housing, showering, sleeping, comfort of the individual. If someone not comfortable with showering someone that is gay/lesbo, then they have their right to request their own shower units, same with everything else(living arrangements).
Showering is 1 point that be big. There will have to be 4 showers or 1. It either have to be a shower for straight males, gays, straight females, and lesbians or 1 CO-ED shower. It either those, cause straights can argue that since a gay/lesbian can shower with ppl they like, why can't they. Also, they can argue that since they don't feel right, they should have their own shower. Either way, it has to be 4 showers(which will take up more room, or just 1 shower, which require a lot of change.
Then the living arrangement. Right now, if a soldier is not married, they live in the barracks, and depending on their rank and size of the room, it with 1-2 other ppl of the same sex. How they going to room them? It the same idea as the showers. Also, would they allow two gay/lesbians that are in a relationship room together in the barracks? Right now, CO-ed rooms are not allowed. Someone from the opposite sex suppose to sign into the other's room, more for the protection of both ppl.
Going to the field or deploying is up to the unit mostly about the sleeping arrangements. My first couple units, we go to the field and we all slept in the same tent, just females had their area corned off. Being deployed, there is no CO-ED rooms again, and even married soldiers are not living together at some locations.
Another thing, when a soldier does get married, they are allowed to apply for military housing, size depending on the size of the family. With gays and lesbians, they might not have kids, and would they be allowed to have the same size house that a husband/wife have with 1 or 2 kids have? In a military community, would the other families around them be comfortable with them living next door?
I, myself don't care. I am not bothered by showing with a gay guy. I don't care what a gay guy does, feels. I draw the line at some point, but they have their right to defend their country like myself. I won't mind the CO-ED showers(sorry, the dirty side of me) but understand that might be out of the question all together. That also the reason why I think it a bad idea. There is still to many people that are not open to that kind of life and it still a long ways away. There are still people out there that are upset with Obama as our Commander and Chief.